Bagaimana mendesain sirkuit mikro. Prosesor sendiri (hampir)

Cara mengembangkan sirkuit mikro Anda sendiri. Saya menanyakan pertanyaan ini ketika saya ingin membuat prosesor saya sendiri. Saya pergi ke google dan tidak menemukan sesuatu yang baik. Jawabannya kebanyakan dua։ "Anda tidak akan membuat prosesor Anda sendiri, karena itu terlalu sulit" dan "Memalu dan merakit komputer dari komponen."





, . Verilog FPGA. , 3 , , FPGA. .





?

. .





. . . . . . , .





. . 130 .





, GDS-II , .





։ . 10000 , . Multi project wafer service [ https://en.wikipedia.org/wiki/Multi-project_wafer_service ].





GDS-II . , , .





GDS-II Process Development Kit

SHA3. SHA3 , Caravel Harness. SKY130 . Caravel Harness .





Sirkuit terintegrasi SHA3 berdasarkan teknologi SKY130, https://efabless.com/projects/4
SHA3 SKY130, https://efabless.com/projects/4

Process Development Kit ։





  • .





    • , .





  • SPICE.





    • . , , .





  • , GDS-II .





  • - , ,

















  • Design Rule Check





    • , .





    • Primitive Extraction rules . GDS-II (netlist). netlist , netlist .





    • Layout versus Schematic check , GDS-II netlist. , .





, SKY130 (130) . , , .





Standard Cell Library. , . .





, .





- - MOSFET. - NMOS PMOS.





. ։





Transistor N-MOS.  Anda dapat memahami tipe berdasarkan tipe dua kontak Sumber dan Tiriskan
N-MOS. Source Drain

։ . , N+ P Substrate. Vgs < Vth NMOS . Vgs >= Vth, Vds < Vgs - Vth . Vgs >= Vth Vds > Vgs - Vth . PMOS, NMOS , .





։ PMOS () NMOS ()





Sirkuit Inverter di Magic dari speedrunner inverter di YouTube
Magic

. Ubuntu ։ https://github.com/efabless/openlane#quick-start. ~/openlane_exp/





։ https://github.com/armleo/sky130_ubuntu_setup/blob/main/install_tools.sh





https://inst.eecs.berkeley.edu/~cs250/fa20/labs/lab1/









  • OpenLANE, . . skywater PDK + . .





    • Yosys. . ։ Claire Wolf. Verilog gate-level , . Design Compiler Synopsys





    • , gate-level GDS-II.





  • skywater-pdk. PDK skywater 130nm. , -





  • ngspice, spice. , HSPICE Synopsys.





  • xschem, . CustomCompiler Synopsys





  • klayout, GDS-II. CustomCompiler Synopsys





  • Magic, DRC, . . IC Validator Synopsys





  • Netgen, LVS . IC Validator Synopsys





  • OpenRAM. . Memory Compiler Synopsys. , - NDA. .





. , .





cd ~/openlane_exp/openlane
docker run -it --rm -v /home/armleo/openlane_exp/openlane:/openLANE_flow \
-v /home/armleo/openlane_exp/openlane/pdks:/home/armleo/openlane_exp/openlane/pdks \
-e PDK_ROOT=/home/armleo/openlane_exp/openlane/pdks \
-e PDKPATH=/home/armleo/openlane_exp/openlane/pdks/sky130A/libs.tech/magic \
-v /tmp/.X11-unix:/tmp/.X11-unix \
-v /home/armleo/openlane_exp:/home/armleo/openlane_exp \
-e DISPLAY=unix$DISPLAY \
-u 1000:1001 efabless/openlane:v0.12

klayout /home/armleo/openlane_exp/openlane/pdks/skywater-pdk/libraries/sky130_fd_sc_hd/latest/cells/inv/sky130_fd_sc_hd__inv_1.gd
      
      



X11 .





.





  • Manage Technologies









  • /home/armleo/openlane_exp/openlane/pdks/sky130A/libs.tech/klayout/sky130A.lyt









  • sky130A





    ?





Inverter

, ։D.





, . SOURCE BULK PMOS VDD . VGND , SOURCE BULK NMOS .





GATE A LI1.





Y LI1.





։





  • NMOS , , PMOS . . NMOS , , , PMOS .





  • NMOS , , PMOS VDD Y. NMOS , , . .





։





։





, 4 ։ DRAIN, SOURCE, GATE, BULK.





։





  • (NAND, NOR), LVS, DRC, PEX .





  • , (Sequential components) - Latch, Flip-flop





  • Setelah itu, kami akan menganalisis cara mengkompilasi Verilog kami di GDS.





  • Mari kita pahami cara merakit skema kita di Caravel








All Articles